639160156

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{19681}}^1$

素因数の和:20061

約数の個数: 24

約数和(自身を含む): 1170527904

約数和(自身を除く): 531367748

約数列:

[1, 2, 4, 23, 46, 92, 353, 706, 1412, 8119, 16238, 19681, 32476, 39362, 78724, 452663, 905326, 1810652, 6947393, 13894786, 27789572, 159790039, 319580078, 639160156]

約数ペア:

[(1, 639160156), (2, 319580078), (4, 159790039), (23, 27789572), (46, 13894786), (92, 6947393), (353, 1810652), (706, 905326), (1412, 452663), (8119, 78724), (16238, 39362), (19681, 32476)]